This is my very favorite of all the Adam Dalgliesh series written by the super-marvelous P.D. James. The book and the mini-series are very outstanding.
Two bizarre murders take place at a nurse training school, and Commander Dalgliesh is assigned the case, along with Inspector Massingheim. Both men work very hard in striving to find the solution. For Dalgliesh, it becomes an ultimate quest for truth despite personal emotions.
The casting and realism of the parts are very well-done. The viewer is swept along with the events leading up to the final denouement of the story. The last half hour or so is quite frightening and moving as Dalgliesh alone grasps the meaning of all the final elements